Debug is a small but powerful debugging utility for Node.js and browsers, essential for developers needing to trace code execution and variable states. Version 2.4.0, released on December 14, 2016, followed version 2.3.3, which was released on November 19, 2016. While both versions share core characteristics like utilizing the 'ms' dependency for human-readable time durations and offering 'mocha' and 'browserify' as development dependencies, the key difference lies in the subtle improvements and bug fixes incorporated in the newer release. Developers upgrading from 2.3.3 to 2.4.0 likely benefited from enhanced stability and potentially optimizations under the hood even without explicitly documented API changes. This iterative approach to software development ensures a more robust debugging experience. Both versions, licensed under MIT, reflect a commitment to open-source principles and are readily accessible via npm, with their source code available on GitHub. The author, TJ Holowaychuk, has also made sure the library easy to use for everybody. The tarball URLs provided offer a direct download of each version, allowing developers to quickly integrate the chosen version into their projects. Developers should always prefer the latest stable release, 2.4.0 in this case, to leverage the most up-to-date features and fixes, though the minimal difference between the library and its previous stable release may not be relevant for certain developers.
All the vulnerabilities related to the version 2.4.0 of the package
debug Inefficient Regular Expression Complexity vulnerability
A vulnerability classified as problematic has been found in debug-js debug up to 3.0.x. This affects the function useColors of the file src/node.js. The manipulation of the argument str leads to inefficient regular expression complexity. Upgrading to version 3.1.0 is able to address this issue. The name of the patch is c38a0166c266a679c8de012d4eaccec3f944e685. It is recommended to upgrade the affected component. The identifier VDB-217665 was assigned to this vulnerability. The patch has been backported to the 2.6.x branch in version 2.6.9.
Regular Expression Denial of Service in debug
Affected versions of debug are vulnerable to regular expression denial of service when untrusted user input is passed into the o formatter.
As it takes 50,000 characters to block the event loop for 2 seconds, this issue is a low severity issue.
This was later re-introduced in version v3.2.0, and then repatched in versions 3.2.7 and 4.3.1.
Version 2.x.x: Update to version 2.6.9 or later. Version 3.1.x: Update to version 3.1.0 or later. Version 3.2.x: Update to version 3.2.7 or later. Version 4.x.x: Update to version 4.3.1 or later.
Vercel ms Inefficient Regular Expression Complexity vulnerability
A vulnerability, which was classified as problematic, has been found in vercel ms up to 1.x. This issue affects the function parse of the file index.js. The manipulation of the argument str leads to inefficient regular expression complexity. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 2.0.0 is able to address this issue. The name of the patch is caae2988ba2a37765d055c4eee63d383320ee662. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-217451.
